Louisana-based architects Mira and Jen have launched an Indiegogo campaign to create PEN15 Club: Members Only ColoringBook, which will feature more than 30 pages of illustrated "penises, boners and one-eyed trouser snakes" in all shapes and sizes. With pieces like "Family Jewels," "Pea-Cock" and "American Got-D*ck," the book promises "hours of fun and entertainment for the cock lover in anyone."

In an interview with The Huffington Post, Jen joked that many of the buildings she encounters as an architect were just "glass and steel erections." Although male genitalia can be interpreted as a "big symbol of power," Jen said she and Mira see them as "funny appendages that are often taken way too seriously."

Jen & Mira
Co-creator Jen said she sees penises as "funny appendages that are often taken way too seriously."

The idea for the book itself came about when Jen was hunting for an adult coloring book as a gift, and found endless editions that looked "like porn shots that had been turned into bad line drawings."

"Our mission is to create a fun alternative to the boring adult coloring books out there," she told HuffPost. "Many coloring books are marketed as relaxing, but we think it would be even more relaxing to color a fun page with a boner on it. We also think it'd be fun to gather some friends and [have] each color a page while drinking a nice bottle of wine."

"Many coloring books are marketed as relaxing, but we think it would be even more relaxing to color a fun page with a boner on it."

Given that she and Mira anticipate that some might be made uncomfortable with the PEN15 Club: Members Only Coloring Book imagery, Jen said they plan to donate a portion of the eventual profits to the Sexuality Information and Education Council of the U.S. (or SIECUS), an advocacy group dedicated to providing sex education and sexual health services.

“We want our book to make people more comfortable talking about and looking at penises,” she said. “You have sex. You have children. If you don’t have a d*ck, you know someone who does. But you can’t look at a cartoon of one?”

Head here to check out the PEN15 Club: Members Only Coloring Book campaign.

This lovely illustrated storybook by acclaimed South Korean artist Daria Song will capture the imagination of any loved one who adores delicate beauty, a hint of magic, and a timeless story. And coloring.<br><br><a href="http://www.amazon.com/The-Time-Garden-Magical-Coloring/dp/1607749602?tag=thehuffingtop-20">Find at Amazon.</a>